Strain Gauge Testing is a method of measuring strain at discrete points on a printed circuit board (PCB) while actuating the test fixture. Measurements are taken from sensors called “rosettes” which are mounted to the PCB. A scanner is connected to the rosettes that records the measurements up to 2000 cycles per second.

The fixture and circuit board used for the strain gauge test result in actual "live" measurements of the unit under test's (UUT's) flexing during the test cycle.

Test results may lead to the following mechanical modifications of the product test fixture. This helps to reduce strain on the product during actual test: